Why These Two Biotech ETFs Are Soaring Monday

The PowerShares Dynamic Biotechnology & Genome Portfolio (NYSEArca: PBE) and the SPDR S&P Biotech ETF (NYSEArca: XBI) are up 8.4% and 6.8%, respectively, Monday, making the duo the day’s two best non-leveraged ETFs. PBE and XBI are soaring because the two ETFs feature the largest weights...